-211 BLACK BUNA 70D O-RING

Ordered as H70211, this is an AS568-211 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 0.796 in (20.22 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.074 in (27.28 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

This material stands up to greases and lubricants, many alcohols, and propane and butane. Buna-N (Nitrile) is known for strong abrasion and tear resistance, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ketones or ozone and direct sunlight are present.

You will find this material specified across construction equipment, fluid power, and hydraulic and pneumatic systems.

This item is sold individually under part number H70211. Unit weight is approximately 0.905 g. Review your operating media and conditions against this specification before installation.